Dumb-waiter and elevator.



No. 851,175. PATENTED APR. 23, 1907. L. 5. LAURENT. DUMB WAITER AND ELEVATOR.

APPLICATION PILED IAY 18, 1905.

4 SHEETS-SHEBT 1.

w TNESSES: v v INVENTOH Y .04 ATTOHNEX v I PATENTED APR. 23, 1907. L. E. LAURENT. DUMB WAITER AND ELEVATOR.

APPLICATION FILED MAY 18,1905.

1 SHEETS-SHEET 2.

A TTOH/VEY PATENTED APRn 23, 1907.

L. E. LAURENT. DUMB WAITERAND ELEVATOR.

APPLICATION FILED MAY 18, 1905.

4 SHEETS-SHEET 3.

nw A/rofi B) M 0M; ATTORNEY L. E. LAURENT. DUMB WAITER AND ELEVATOR.

APPLICATION FILED MAY 18, 1905.

Wane/Jaw PATENTED APR, 2' l i Y Un'irnn LQUZS E. LAURENT,

DUMEES tt-Wli'? of Letters Application filed l ing 18,1565. Qciicl 3Y0 To all whom it may; concern:

Be it known that I, LOUIS E. LAURENT,

citizen-of the United Stetes, residing at Tronton, in the county of Merger and State of New Jersey, have invented new and useful im provements in Dumb-Visitors and Eieve-tors, of which the llowing is e specification.

TlliklIlVQIltlOXl relates to improvements in elevators and particularly to that cioss or 0 elevators which are commonly waiters and which are useful for carryin Q rious articles from iioor to floor in buildings.

The object of the invention is the ore sion of an e evetor or dumh waiter iv: oi

may be electrically operated and which can be in motion from on floor in a buildi g and be caused to outoniaticeliy stop at c. 1 "other floor according to the intention of the operator. X I

It is a further object of the invention provide means in connection with the controlling mechanism which shall indicate at the different floors or stations 1" the huiiding or structure in which the elevator is incorporated at what point the elevator is at a y time when stationary or iii-which direction it is moved when in motion. With these and other objects in view tli invention comprises certain novei construc- 3o tions, combinations and arrangements parts as will be hereinafter fully described and claimed.

In the accompanying drawings: Figure l is a top plan view of the mechanism for driving the elevator the controller for start" '5 ti mechanism and automatically stopp being also shown. 2 is a iro elevation of the some. Fig. 8 is an enlarged elevation of the starting controller. Fig. A is s view of -0 a portion otthe controller on e i than shown in Fig. 3, a portion of the mechenism being shown in elevation and a portion in central section. Fig. 5 is a side elevation of the controller, the contact disc which is 4 5 used in connection therewith being removed, and a portion of one of the contact rings which is connected with the line wire, being partially broken away. Fig. 6 is e dctaii sectional View taken upon the line cb of Fig. 4. Fig. 7 is an end elevation of the controller without the contact disc. 8 is a side elevation of the contact disc showingthe face which. is engaged by the contacts oi the control er. F' g. 9 view of the other side 'ooerator inav desire. The mechanism the said co mechanism.

in nae-Loy buildings or eve sized ones it of great cdvantege tr e'utomsticaiiy elevating in necessary use the ing no unnecessary wast tion of the current. The mechanism ranged. that it may be controlled from floor or station the building and the car the elevator can lie-sent from any floor station to any other floor or station also provided with indicating means loca at each floor or station in the ,huildi We will show in what position. the car 0. .n voter is occi'ipyi.

In the drawing; tica manner effect, end

:1. J. l with iciewnce LC t e same. LhQf/i.

of any desired form end. strength, the sou drum is designed for wini I mg the rope or cable 6 Willlll] lS connect d 'ususlly passing over a. pull ing or structure is a mot-or 1, which may on is y or drum 8 ioc sted shove the highest point which is to he reeched'hy the car. Adjacent to the motor and the drum 5 is mounted u'luit is usual. termed a self-starter, es The seliwith the elevator our 7, .he so. rope a starter 9 is also constructed. in ne usual. or

- Vetor. 14 for properly directing tl ordinary manner, t-l seine he 5;- provided with resistances which are auto 'izitically cut out, for increasing the speed oi the motor, by means of a switch arm l0 which drown si cessively over contact points ll. by means of e solenoid or other magnet 12. The switch arm 1 0 is provided with a dash pot spring mechanism, as e813, 1" hing it to its normal position when 2 motor is not actuated by the electric current.

As shown in Fig. the cm 7/ may be arranged to travel in :1. suitable sh it 3 4i, lornied in the Walls of the building", and openings sreprovided at points Where it is d to have the our stop. Asshown in l the opening at one of said stations nuiy be provided with a door 16 which the ouerntor opens for gaining access to the car oi he ele- Guides 17 are z rrz' red in the sh;

movement the car. Thecontroller ope -tins; niei'rhz. ism with its indicator is located to one side of the door and its inechonisin will be hereiiuil ter fully described. As shown in Fig. ll the elevator is only ccessihle from one side. The elevator may, however, he made 51cc sible from opposite sides, as shown in Fig. 12, as when it is made to run witiiin a pertition Wallsepereting two apartments. in il is instence two doors as 18- ore provided, one upon one side of the elevator and the other upon the other side. When runniiig the ele- Vator ins Well of this character the car, i5), is preferably msde open upon both "des. The controlle operating mechanism and the indicators are also made to extend upon the opposite faces of the partition Wall.

The mechanism for operating the coiitroller comprises a rod 20, which is provided at suitable intervals with reel: bin sections 21, the saic rack bars being errsng ed opposite the openings in the shaft 14. A Sinion 22 meshes with the teeth of each rack bar 21nd is carried by a shaft 23 mounted edjecemt to the rock oer, the end of the said shaft extending outside the well and carr ing an operating handle or erin 2e merino the arm 24 the pin on 22 irisjlJe moves for ecl ring the ram and corr' Minding-1y raising or love mg the rod 20. "i re upper end of ihe rod is prclferolily rouriected with ls deuce weight 2."),

.i in on: sun-sine m oesireil num- :iud oro'ler to use 'l'or his purpose, 0.. rower end oi the rod 2o heel i579 uliicli is is guide I'll h said.

. The {arm floor is made to lr plate and tlr with the holds the rock her as clearly iliustr-iitml zit (ztk'll sl lion'or TO over an indicating); is provided with liiloreirl. stations or i'or lmscrncut, and

lil 6.

marks dos floors, as for i. 2, 3, 4', 5, 6, etc, r log to the lloors in 6 huildin it Wi is moved to the imlicutiou all of the handles 1 u ll point. to the Sil llli" indication.

The cimtroller actuating mechanism just described is iironuecled with :1- coutrollcr, us shove stated, and the structure oi the cout-roller, which will now be dcsarilwl, is such that when anyone of the handles 24 moved to a certain ind' ation or number the elovator motor will he starred and caused to operate long enough in brin the c-ur com site the floor or station llP 'illlfllHl by the said indication, when the iotor' 'ill be autonuiticully stopped and ti o r .1 n. be checked opposite the proper floor or 'ou. ll it is desired to return the can to its origiuul position or to a lower lioor one ol the handles is moved opposite the proper indication or number and the nioior will be rev 'ul 'lor his; 1110 c r to the desired poi'm. The oucr IYiQlI 1 to conuuises e.- iuiovnlilo member 32 which movslily mourned upon 11. shaft 53, the said lllliillJCl' being pro "vidcd with l'iul') Zillor this purpose. shaft 33 is inountml in bearings adjacentto the drum 5 and the said shell. prele ably 0; tends at right l s to the sluiiu' l oi the said drum 5. 35 secured to the shaft Willil u worm 36 is moved lo B all is thus rotated by the shaft of'the drum r whenever the said drum is driven by the oporation of the motor 1. The hub 34 is loosely mounted on the shaft 33 so that it doesnotturn with the shaft. The gear 29 is rigidly secured to the said hub 34 so that when the said gear is moved by the raising lowering of the rack bar rod the hub 3-4 and the movable member 32 of the con' 'troller will be correspondingly moved about.

a handbrake 38 is arranged to bear upon conductor 55.

the periphery thereof, a suitable weighted lever 39 eing used to maintain a proper tension upon'the band brake 38. The friction of the brake will be sufiicient to hold the movable member 32 in its various positions but will not be suliicient'to make it diflicult to move the said member through the a ency or" thepperating handles 24 and the rack bar rod 20.

The movable member 32 is made up of a frame projecting oppositely from the hub'34 to a suitable distance and carrying sliding blocks or members 40 and 41. These slides 40 are provided with guide-ways or grooves 42 in their side walls Which engage inwardly projecting guides 43 formed upon the traming of the member 32. Movably mounted in the slides 40 and 41 are contact plugs 44, 45,46, 47 and 48. of the said plugs, namely 44, 45, and 46, While the slide 41 carries the other two contact plugs 47 and 48. The said plugs are all insulated from their respective slides by being movably held in position by face plates 49 and 50 which are insulatedfrom the body portions of the slides, such insulation being shown at 51 and 52. The inner ends of the plugs are, however, electrically connected, the three plugs 44, 45,- and 46, being joined in this manner by conductors 53 and 54, while the plugs 47 and 48 are connected by a The contact plugs 47 and 48 are also electrically connected with a contact ring 56 which is mounted upon the movable member 32 but is separated therefrom by insulation, as at 57. The connection between the rin 56 and the said plug is preferably effected l oy pivoted links 58 and 59 so that the said plugs may move with their slide 41 without destroying their electrical connection with the said ring 56.

The slides 40 and 41 are normally drawn toward the shaft 33 by the action of springs 60 which surround pins or bolts 61 carried by across-bar 62. The said cross-bar 62 of each slide 40 and 41 is rigidly secured to the end of said slide and the pins or bolts 61 proect inwardly therefrom, passing through apj ertured lugs 6 2: which project from the mov- The slide 40 carries three able member 32.' The springs 60 are shouldered against said lugs 63 and also against nuts 64 secured to the ends of the pins or bolts 61. The tendency of the said springs is thus to pull the slides inwardly as above intimated.

It is desirable to lock the slides in their outermost positions when the elevator mechanism is in operation, the locking means being such that the slides may be easily released therefrom when the mechanism is antomatically stopped and the parts come to rest. The locking means referred to preferably consists of spring vactuated bolts 65 which extend transversely across the ends of the movable member 32 having bearings in projections formed thereon, the said bolts being provided with slots of opposite the ends of the slides 40 and 41. The said slots are adapted to receive projecting hooks. 67, which extend from the ends of the slides 40 and 41, when the said slides are in their outermost positions. The bolts 65 are held in engagement with the said hooks 67 by means of springs 68 which bear against collars69 secured to the said bolts. The contact ring 56 is engaged by a contact standard 70 w rich rises from the base of the apparatus and which is electrically connected with the feed or line wire coming from the source of electrical supply. This is diagrammatically indicated in Fig. .16. Operating in conjunction with the slides carrying the contact plugs is a contact dish 71 which is rigidly secured to the shaft 33 so as to turn therewith when the motor is in operation. The said disc is provided upon its face, which is next to the movable member ,32, with segmental plates or contact strips 72, 72*, 78, 73, and 74, 74*. Spaces are left between the adjacent ends oi these segmental contact plates as indicated at 7 5, and these spaces are preferably in alignment with each other and also in alignment with the contact ends of the plugs carried by the slides 40 and 41 when theelevator actuating mechanism is stationary. The spaces are flared inwardly toward the center of the disc, as clearly shown in Fig. 8, and a corresponding flare is given to the contact ends of the plugs 44 to 48. It will thus be seen that when the said plugs are brought opposite the spaces 75 and moved quickly toward the center of the disc 71 by the action of the spring 60, that the contact between the said plugs and the segmental contact plates of the disc will be readily and quickly brokenj When the movable member 32 is swung to one side or the other upon the shaft 33 the? contact plugs will be brought into engagement with the contact plates of the disc 71 for comploting the proper electrical circuits through the elevator actuating mechanism. be contact plugs are forced into firm contact with the contact plates of the disc 71 by means of springs '76 which surround the stems of the movable men.

sold plugs and bear against t the wells of the slides 40 and ture is clearly sh own in l? i "s.

The contact plates on the inne face of the disc 71 o firmly secured thereto by hei 1g bolted or'riveted to segmental pistes 7'7, 77, 78, 79, and 79*, which are located upon the (interface of the said disc 71. The said disc 71 is preferably made of soapstone, slate or other insulating material and the rivets bolts which connect the segments on its opl posite feces pass through said disc as shown in. Fig. l and electric: llj; connect corresponding phttes upon the opposite feces of the discs. The scginei'itol plate I"? is pro vided with a binding post 77 and the plate 77" -with a binding post 77" for permit lug oi the said plates being connected: flvith the sellstorter solenoid 12. Such connection is indicated in the diagrammatic view, Fig. 16, its by Wires or conductds S0 and 81. The ginentcl plate 8 provided with o binding post "8 which is connected by conductor 78 with the field magnet 82, as indicated in Fig". The current passes from the conductor 78" through one winding of the field 82 and through it conductor 83 to the resistances of the self-stutter. The plates 79 and 79 are provided. with binding posts 9' and 79" which are connected by conductor and 84 with the Winding of "l e armature 85, us shown in Fig. 16. The said disc 71 is thus provided With the proper connection n cessary for exciting'stsrting end running the motor in the operntion of the elevator. The disc 71 also provided with means for nioving the slides 40 end 41 outwardly when coutsct is to he made between the plugs of the ,r 32 and the contact plates oi the disc 71. This means consists in en unnulsr projection or rib 86 formed upon the huh 8? of the disc 71 which is'zrrrenged in alignment with the inner ends of the said slides ltl and ll. These inner ends. on. ry enti-frictimi rollers 88 and 89 which travel upon the periphcry of the annular projection or iii) 86, and normally hold the slides in their outer positions 4 l The annular disc or rih 5. .6 is provided Willi l oppositely arrai d depressions or re :csss l 90 which are pro; rly located to receive the l anti-friction rollers 88 and i 5; when the slide." l 4-0 and 4]. are moved in rdl for breaking the contact made by the plugs With the l plates of the disc 71. Th, snid reccs 9i) lt l l l l l l l l l l are therefore arranged in alignment with the 75 sscleerly shown in Fig. it is necessary also to'unloch the slides 41G sud in order that they in ey be moved in- Wsrdly, the disc '71 is provided with projecting OELlYl surluces 91 arranged opposite the spaces 75 and also arranged in the path of the bolts 65. When the ends of the holts engag-send ride upon the earns 91 they will l forced against the action the springs l sutllciently to r lease the hooks nut the said sires to move irmurclly. 'ill be seen that the slides are tlulslunlocl by the coins ill at it 'n'oper tin i i untiel rirtion rollers 4:5 and A to drop him the recc .lll, the contact phurs luii'i thus i s'tnntly moved out of contact rd 1 the ole toe. on the inner surhice of the disc The n locking cums ill and the rec end uuuulur projection or rio so opera 2 slinulloncousl r when the plugs oppoii ,e the spuccs /5. The cont -ct plaice upon the inn "rarer ol the disc 71, it will he seen, are urrunged in p irs upon the opposite sides of the specs-s Z 5 ud are so connected as SllOWI'l in Fig. ll), that when the conhn plu engu go the plates upon one side oi said ices the motor will lac actuated in one dime/tics. ni'ul when they en the other set of plates, the motor ll he reversed. The course ol the curl ere sllected this movement 0. carrying member in one d cl other will be clearly understood to Fig. l6. In this figure the wire 9" shown which is c in'uectc Contact standard 70. l'n'u extends from the Sllh'l feed v jre l2 in; in the iield of the motor, as at Al. The said winding is also connected by u conductor 95 with the return line wire llli ll heu the controller is moved to cause the. elevumr to 'oqcurried upwardly, the iutzrct plu l, ir"), and 4-6 will he moved to the posill o indicated in full lines in lig. it, so to cnguge the three contact segments on the too ill-so 7 which lie upon one side F the up or spaces 75, While the contact plugs l? and A l} which are connected with the feed. through the post 70 and the rh'igr 5c, 1

the outer mid lllllQl'lnlflSt contact K05 ments 72 and 74 upon the other side ol' sold spaces 75. lfith the parts in this position it will he seen that a current of electricity will llow from the feed wire ough the stainlnrd 7t) to the contact plugs "l? l its. The port of the cu rent which is thus leiver-: d from the plea; i? to the n ,l contact phtl'e 7-1 will he d l thr ugh the conductor 5-" which is connected with the nd of the Contact piece 74 to one end ri 1," ZEX 1.1 SEendpsssing thence inonc u i I l the said armature will he deli: other eonduetm so to the w you 74, n the opposite side oi; A res The current will then puss from the plug to the plug l5, thus reuchiu' 1c contuct merit '73, whence it 10s to the on the other side or the di c '71 the conductor "'2 to t d motor lield, thence throru h the :15

to the resistnnc througl'i the 11love, U

return line wire 96, co

it the so is tune it "X passes "from the contsc LII . 2, thence through. conductor 80 to the magnet or solenoid 12, returning through the conductor 81 to the segment 72, and reachhe segment 73" through the connected M plugs all and 45. At this point the or lioth portions of the current is the 1 hrough the conductor 78 held Wind 82, conductor 83., rheostat and thence to Wire 96. above pointed out the Winding o the rector field is connected in shunt with the line Wi es by the conductors 93 and 95 so that the said field is always properly excited for facilithe operation. of the motor. When is conxoller is moved so as to the motor and cause the car of the elevator to rents is some h nged and the ch n is indicated ion. he o "rain in Fig. 16 by do'ted lines the position of the plugs e7 and plugs 44-, -5, and 46, and dotted used tor showing the direciich the current flows, full line on wing been employed in showing the at of the current shove traced. llhen moto is reversed i Will he observed that ct plugs 47 and 4-8 are so located 3 engage the contact segments t Z P and the current as it comes irorn the ire 92 passes through the sail; contact 74: and 7'2- in :1 reverse direction a the arinatlu'e 85, ca 'ng it to reno the opposite direction from. i

it reviously revolved, the curriin a reverse :1; rection th:

01" course the ellect the parts just desc ioed is in of the armature o'l' mo ation of the IllQ-Gllillfil The elevator may 1 he lower end on ise swinging member e. rtions of the annular proicction o1 The bolts Will thes n ime l We the cam 91 and be permitted to engage t1 s fo holding .11 5 loo-h ng the heir outermost positions. 'l'he lugs 44, 15, 46, 4:7, and 48 Will he brought into contact with the contact segments of the disc 71, and the circuits through the motor and sell-starter will be established causing the gradual starting and increased continued movement of the elevator until it reaches the desired floor. lly the time the car of the elevator has reached the third. floor the disc 71 will have been moved by the motor a cullicient distance to bring the 7-5 opposite the contact plugs let to 18 and the locking bolts will then release the slides and 41 and they will drop into the recesses 90 causing a breaking of the circuits and stopping of the elevator. if the elevator is to he re tinned to the basement, the operator moves the handle 24 to the indication B and this Will move the member 32 as far in theoppodirection as it was originally moved in the other direction, establishing a reverse current through the motor and causing an unwinding of the drum 5 until the car reaches the basement, by which time thedisc '71 will have brought its circuit breaking spaces opposite the cor [act plugs, and the Inc-chanisio will be stopped. it will he obsei vcd thtt since all of the handles 24 at the diil'crent floors in the bui ding are connected by their respective pinions ith the same rod 20 that any movement in one of the handles will be shown by all of the other handles, since the y will he correspondingly moved. With respect to their indicating plat-cs. It will also be ob- "erved that on o erator any one or the rs may 1 only bring the elevator car to re floor but 1312 send it to any floor bc- 'J' or above his on merely by mo mg the ,ndle 2d at his o an floor.

mechanism of this ch rotor especially useiol in zildings like the modern epilerncnt hous t ailords means for any nvto of ring to send articles, mate ale, or oth r tl'nngs to the lmscment or to rer floors of the building under his own a ch and is desired to have the janitor of the building in the basement procuc and send articles of any kind it is only ecessary to communicate with the janitor t ough oal zing tubes, telephones or like to o" object may he cooomplisncd, tho

i icing opt/lat 1 .Wil floor or b and adap x ciifl or various hu 7 e Well unc e; stood or course tl e site ol the elevating mechanism may be varied to the various circumstances under which it is to he used. it the mechanism is to be employed in the place of an ordinary iunh Waiter the apparatus need not be in lo of s' and can usually be coi'istru ted so that the oer can be accommodated within the wells of the building or other structure. In the event of the apparatus being used for IOO member, and means for breaking the circuit when the shaft has rotatedjthrough an are equal to the arc of movement of the rotatable member.

Winding drum, a shaft rotated by said drum, a contact disk rigidly mounted upon said shaft, a controller member rotatably mount shaft, contact blocks carried by the rotatable signature, in presence of two subscribing Witmember and in contact with the disk, indenesses. v

pendently located means for moving the rota T table member in either direction, means com- LOUIS LAUREB pleting a circuit for rotating the shaft in the Witnesses:

same direction traversed by the rotatable EDWARD B. DURHAM,

ed upon and rotatable independently of the In testimony whereof I have aflixed my 15' CLARENCE E. SPRAGUE. 

